Design of magnetic levitation electromagnet for High Speed Maglev train

Lim, Jaewon; Kim, Chang‐Hyun; Lee, Jong-Min; Han, Hua; Park, Doh-Young

doi:10.1109/icems.2013.6713227

Cited by 1 publication

(1 citation statement)

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“…HTS relies on the non-ideal diamagnetism and flux-pinning properties of the type-II superconductors to achieve stable electromagnetic forces between permanent magnet guideways and superconductors [3,4]. EMS utilizes the interaction between ferromagnetic materials and electromagnets, requiring a closed control loop, due to the unstable nature of the attractive force [5,6]. EDS, the focus of this work, is based on the induced currents forming in conductive materials when exposed to a variable magnetic field, generating repulsive forces [7,8].…”

Section: Introductionmentioning

confidence: 99%

Electrical Circuits Simulator in Null-Flux Electrodynamic Suspension Analysis

Franca

Zhu

et al. 2023

Applied Sciences

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This paper employed an electrical circuit simulator to investigate an electrodynamic suspension system (EDS) for passenger rail transport applications. Focusing on a null-flux suspension system utilizing figure-eight-shaped coils (8-shaped coils), the aim was to characterize the three primary electromagnetic forces generated in an EDS and to compare the findings with existing literature. The dynamic circuit theory (DCT) approach was utilized to model the system as an electrical circuit with lumped parameters, and mutual inductance values between the superconducting (SC) coil and the upper and lower loops of the 8-shaped coil were calculated and inputted into the simulator. The results were compared with experimental data obtained from the Yamanashi test track. The comparison demonstrated close alignment between the theoretical expectations and the obtained experimental curves, validating the accuracy of the proposed model. The study highlights the advantages of this new approach, including faster computation times and efficient implementation of modifications. Overall, this work contributes to the ongoing development and optimization of null-flux suspension Maglev systems.

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